Proportional Directional Valve 4WRTE25W8-350L-4X/6EG24EK31/F1M - Bosch Rexroth R901005990

An injection or press force profile consists of several stages that follow each other within a few hundred milliseconds. This 4WRTE executes them through an internal position control loop and provides 350 l/min nominal flow at 350 bar for the purpose.

Benefits

• 350 l/min nominal flow, up to 870 l/min maximum, for fast stage changes in a profile.
• Internal position control of the main spool holds each stage regardless of back pressure.
• Internal pilot supply with external return, only one extra line on the manifold.
• Linear characteristic with a 4...20 mA command and 24 VDC supply.
• 17.94 kg on the size 25 interface ISO 4401-08-08-0-05.

Applications

The valve is used on injection moulding machines, blow moulding lines and presses with a programmed force or speed curve. Test benches with predefined ramps also benefit from the fast and repeatable adjustment. Sealing is NBR for HL hydraulic fluid.

Manufacturer

This product comes from Bosch Rexroth and carries material number R901005990.